﻿package org.minuframework.kdniao.logistics;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;
import java.security.MessageDigest;

/**
 * 快递鸟订阅推送2.0接口
 * @技术QQ: 4009633321
 * @技术QQ群: 200121393
 * @see: http://www.kdniao.com/api-subscribe
 * @copyright: 深圳市快金数据技术服务有限公司
 *             ID和Key请到官网申请：http://www.kdniao.com/ServiceApply.aspx
 */

public class KdniaoSubscribeAPI{
    
    // DEMO
    public static void main(String[] args){
        KdniaoSubscribeAPI api = new KdniaoSubscribeAPI();
        try {
            String result = api.orderTracesSubByJson();
            System.out.print(result);
            
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    
    // 电商ID
    private String EBusinessID = "请到快递鸟官网申请http://www.kdniao.com/ServiceApply.aspx";
    // 电商加密私钥，快递鸟提供，注意保管，不要泄漏
    private String AppKey = "请到快递鸟官网申请http://www.kdniao.com/ServiceApply.aspx";
    // 测试请求url
    private String ReqURL = "http://testapi.kdniao.cc:8081/api/dist";
    // 正式请求url
    // private String ReqURL = "http://api.kdniao.cc/api/dist";
    
    /**
     * Json方式 物流信息订阅
     * @throws Exception
     */
    public String orderTracesSubByJson() throws Exception{
        String requestData = "{'OrderCode': 'SF201608081055208281'," + "'ShipperCode':'SF'," + "'LogisticCode':'3100707578976',"
                + "'PayType':1," + "'ExpType':1," + "'CustomerName':''," + "'CustomerPwd':''," + "'MonthCode':''," + "'IsNotice':0,"
                + "'Cost':1.0," + "'OtherCost':1.0," + "'Sender':" + "{"
                + "'Company':'LV','Name':'Taylor','Mobile':'15018442396','ProvinceName':'上海','CityName':'上海','ExpAreaName':'青浦区','Address':'明珠路73号'},"
                + "'Receiver':" + "{"
                + "'Company':'GCCUI','Name':'Yann','Mobile':'15018442396','ProvinceName':'北京','CityName':'北京','ExpAreaName':'朝阳区','Address':'三里屯街道雅秀大厦'},"
                + "'Commodity':" + "[{" + "'GoodsName':'鞋子','Goodsquantity':1,'GoodsWeight':1.0}]," + "'Weight':1.0," + "'Quantity':1,"
                + "'Volume':0.0," + "'Remark':'小心轻放'}";
        
        Map<String, String> params = new HashMap<String, String>();
        params.put("RequestData", urlEncoder(requestData, "UTF-8"));
        params.put("EBusinessID", EBusinessID);
        params.put("RequestType", "1008");
        String dataSign = encrypt(requestData, AppKey, "UTF-8");
        params.put("DataSign", urlEncoder(dataSign, "UTF-8"));
        params.put("DataType", "2");
        
        String result = sendPost(ReqURL, params);
        
        // 根据公司业务处理返回的信息......
        
        return result;
    }
    
    /**
     * MD5加密
     * @param str     内容
     * @param charset 编码方式
     * @throws Exception
     */
    @SuppressWarnings("unused")
    private String MD5(String str, String charset) throws Exception{
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(str.getBytes(charset));
        byte[] result = md.digest();
        StringBuffer sb = new StringBuffer(32);
        for (int i = 0; i < result.length; i++) {
            int val = result[i] & 0xff;
            if (val <= 0xf) {
                sb.append("0");
            }
            sb.append(Integer.toHexString(val));
        }
        return sb.toString().toLowerCase();
    }
    
    /**
     * base64编码
     * @param str     内容
     * @param charset 编码方式
     * @throws UnsupportedEncodingException
     */
    private String base64(String str, String charset) throws UnsupportedEncodingException{
        String encoded = base64Encode(str.getBytes(charset));
        return encoded;
    }
    
    @SuppressWarnings("unused")
    private String urlEncoder(String str, String charset) throws UnsupportedEncodingException{
        String result = URLEncoder.encode(str, charset);
        return result;
    }
    
    /**
     * 电商Sign签名生成
     * @param content  内容
     * @param keyValue Appkey
     * @param charset  编码方式
     * @throws UnsupportedEncodingException ,Exception
     * @return DataSign签名
     */
    @SuppressWarnings("unused")
    private String encrypt(String content, String keyValue, String charset) throws UnsupportedEncodingException, Exception{
        if (keyValue != null) { return base64(MD5(content + keyValue, charset), charset); }
        return base64(MD5(content, charset), charset);
    }
    
    /**
     * 向指定 URL 发送POST方法的请求
     * @param url    发送请求的 URL
     * @param params 请求的参数集合
     * @return 远程资源的响应结果
     */
    @SuppressWarnings("unused")
    private String sendPost(String url, Map<String, String> params){
        OutputStreamWriter out = null;
        BufferedReader in = null;
        StringBuilder result = new StringBuilder();
        try {
            URL realUrl = new URL(url);
            HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();
            // 发送POST请求必须设置如下两行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            // POST方法
            conn.setRequestMethod("POST");
            // 设置通用的请求属性
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            conn.connect();
            // 获取URLConnection对象对应的输出流
            out = new OutputStreamWriter(conn.getOutputStream(), "UTF-8");
            // 发送请求参数
            if (params != null) {
                StringBuilder param = new StringBuilder();
                for (Map.Entry<String, String> entry : params.entrySet()) {
                    if (param.length() > 0) {
                        param.append("&");
                    }
                    param.append(entry.getKey());
                    param.append("=");
                    param.append(entry.getValue());
                    System.out.println(entry.getKey() + ":" + entry.getValue());
                }
                System.out.println("param:" + param.toString());
                out.write(param.toString());
            }
            // flush输出流的缓冲
            out.flush();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));
            String line;
            while ((line = in.readLine()) != null) {
                result.append(line);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        // 使用finally块来关闭输出流、输入流
        finally {
            try {
                if (out != null) {
                    out.close();
                }
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        return result.toString();
    }
    
    private static char[] base64EncodeChars = new char[]{'A' ,'B' ,'C' ,'D' ,'E' ,'F' ,'G' ,'H' ,'I' ,'J' ,'K' ,'L' ,'M' ,'N' ,'O' ,'P' ,
            'Q' ,'R' ,'S' ,'T' ,'U' ,'V' ,'W' ,'X' ,'Y' ,'Z' ,'a' ,'b' ,'c' ,'d' ,'e' ,'f' ,'g' ,'h' ,'i' ,'j' ,'k' ,'l' ,'m' ,'n' ,'o' ,
            'p' ,'q' ,'r' ,'s' ,'t' ,'u' ,'v' ,'w' ,'x' ,'y' ,'z' ,'0' ,'1' ,'2' ,'3' ,'4' ,'5' ,'6' ,'7' ,'8' ,'9' ,'+' ,'/'};
    
    public static String base64Encode(byte[] data){
        StringBuffer sb = new StringBuffer();
        int len = data.length;
        int i = 0;
        int b1, b2, b3;
        while (i < len) {
            b1 = data[i++] & 0xff;
            if (i == len) {
                sb.append(base64EncodeChars[b1 >>> 2]);
                sb.append(base64EncodeChars[(b1 & 0x3) << 4]);
                sb.append("==");
                break;
            }
            b2 = data[i++] & 0xff;
            if (i == len) {
                sb.append(base64EncodeChars[b1 >>> 2]);
                sb.append(base64EncodeChars[((b1 & 0x03) << 4) | ((b2 & 0xf0) >>> 4)]);
                sb.append(base64EncodeChars[(b2 & 0x0f) << 2]);
                sb.append("=");
                break;
            }
            b3 = data[i++] & 0xff;
            sb.append(base64EncodeChars[b1 >>> 2]);
            sb.append(base64EncodeChars[((b1 & 0x03) << 4) | ((b2 & 0xf0) >>> 4)]);
            sb.append(base64EncodeChars[((b2 & 0x0f) << 2) | ((b3 & 0xc0) >>> 6)]);
            sb.append(base64EncodeChars[b3 & 0x3f]);
        }
        return sb.toString();
    }
}
